hi and hello any trooper experts on here ? i have a 3.1 diesel trooper that used to work just fine around the farm which was then left in a barn for several years, i decided the other day to drag it out and get it running again, but alas no go it cranks over ok but refuses to start, where do i begin ? is it an ecu controlled engine or hopefully a single wire to the injector pump ?? what do i do first undo an injector pipe and see if fuel is arriving at the injector ??